Remark :
A: Impact test on material grades SM400, SM490, SM520, SM400B, SM490B, SM490YB, SN400B,
SN490B, 43C and 50C with thickness > 12 mm. at 0 C
B: Impact test on material grades 43 B, 50B, S275JR and S355JR with thickness > 12 mm. at 20C
C: It is permissible to vary the carbon and manganese contents (ladle analysis) for grade 50B
and 50C on the basis of an increase of 0.06% manganese content for each decrease of 0.01%
carbon or vice versa up to maximum manganese content of 1.60% and maximum carbon content of 0.22% for grades 50B and 50C
D: The yield ratio (max.) for all thickness of materials under grades A992 is 85%
E: For grades 50 steel of thickness 20 mm. and under, the tensile strength shall be a minimum of 485 N/mm
F: A maximum of managnese of 1.50% is permissible, with an associated reduction of the carbon of the carbon maximum of 0.03%
G: For the H section, when the t1 is 9 mm. or less, the upper limit of the yield point or poof stress shall not be applied
H: For the H section, when the t1 is 9 mm. or less, the upper limit of the yield ratio shall be 85% |
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